Some issues with a 94 S Series blazer.
EGR valve, tends to build up carbon and get stuck open. GM recall
changed the programming to allow it to remain open a bit longer and cure
the problem. Doesn't always work. Real fix- remove EGR, clean out
passages with a stiff brush (or pull the intake and REALLY clean it out)
then clean and reinstall the EGR using a screened gasket to keep any
carbon out of it. (gasket is about 13.00 and WELL worth it.)
Front wheel hub bearings- they wear out rather fast (60-70 K from
others, mine went 100K before it was bad enough to need new.
Oil lines to remote mounted oil filter/cooler - Known to seep and leak.
If they are seeping REPLACE them. They have blown off and puked the oil
on some vehicles. GM has newer ones out that seem to help the problem OR
go to a GOOD shop and have new lines made up either using the original
ends OR thread the adapter plates and use hydraulic fittings.
Transmission - 4 speed 4l60E has a known issue with the bores in the
valve body wearing and setting codes. Fix- Either hone and sleeve the
bores OR replace the valve body with new. (hone and sleeve is MUCH
cheaper and will probably last longer as well)
Electronic 4X4 switch has been known to cause problems due to faulty
solder joints. Fix- R&R switch OR open it up and resolder ALL
connections in it.
Transmission mounts wear/break if abused.
Ball joints (upper especially) wear poorly (easy test , push front end
down hard and listen for a loud POP on rebound, POP denotes worn ball
joint)
Idler arm wears rapidly causing the front wheels to wander and toe in to
alter. Not hard to repair. New arm is about 30 bucks. I think one off a
heavier truck might fit but haven't looked since I replaced mine.
Drivers or passengers seat reclining mechanism gets loose/breaks seat
frame. Not hard to repair and is easily reinforced to make it MUCH
stronger than the original. Just remove the seat and remove the hog
rings, remove the upholstery and foam, clean up the inside and outside
of the mounting hole. Weld in a plate on both sides the length of the
notch in the frame. Drill the hole in the plates and either tap threads
in OR weld a nut on the inside plate. Reassemble and enjoy. (did this on
our 94 about three weeks ago. Test: Place seat in full upright position
and try to rock the seat back front/rear. ANY motion means the bolt is
either loose or the hole is worn. (this applies to a bunch of GM
vehicles though.)
ABS front sensors : wiring failures due to MANY connectors inline.
Sometimes can be cured by simply removing connector and cleaning then
putting some dielectric grease in the connector to stop moisture. If a
sensor fails you have to remove the front hub and replace the
sensor/backing plate assembly. 102.00 from GM.
To be fair our 94 has 165,000 on it and is not a pampered vehicle. 94 S
blazers are also the last year of the older body style (93 for S
pick-ups) They are not real hard to work on and other than the rust and
crud from the salt in NY ours has been a real reliable vehicle.
--
Steve Williams
<calcerise@hotmail.com> wrote in message
news:1115864052.611296.181550@g14g2000cwa.googlegroups.com...
> The 4.3 as far as I remember was the V-6 version of the small block
> Chevy, and so has the same issues, but most parts should be cheap. I'd
> ask about which trans it has-one of the automatics they used then was
a
> disaster. The fix was to fit a THM or 700R4, but it wasn't cheap
> especially if you had to pay someone else.
>
>
----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----
